Concentration is always measured in grams of solute divided by liters of solution. true or false?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

What are similarities and differences between refraction, reflection, diffraction and absorption?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?